Groups 13-16, hope this helps!
Answer:
Thus the order of covalent character will be
DG < EG < DF < DE
Explanation:
The electronegativity decides the nature of bond formed between two atoms.
More the difference in electronegativity more the ionic character in the bond formed.
Let us check the electronegativity difference between the elements forming molecules
a) DE :
3.8-3.3 = 0.5
b) DG :
3.8-1.3 = 2.5
c) EG
3.3-1.3 = 2
d) DF
3.8-2.8 = 1.3
So the maximum ionic character will be in DG and minimum in DE
Thus the order of covalent character will be
DG < EG < DF < DE
Answer:
molecules heat and move faster, they are moving apart. So air, like most other substances, expands when heated and contracts when cooled.
Explanation:
Because there is more space between the molecules, the air is less dense than the surrounding matter and the hot air floats upward.
Answer:
The acid dissociation constant, _Ka__, is a quantitative measure of acid strength
Explanation:
Thermosoftening polymers<span>. </span>Thermosoftening polymers<span> soften when </span>heated<span> and can be shaped when hot. The shape will harden when it is cooled, but can be reshaped when </span>heated<span> up again. ... Its tangled </span>polymer<span> chains can uncoil and slide past each other, making it a flexible material.</span>
